9900071803 has 2 divisors, whose sum is σ = 9900071804. Its totient is φ = 9900071802.

The previous prime is 9900071791. The next prime is 9900071827. The reversal of 9900071803 is 3081700099.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9900071803 - 2¹⁷ = 9899940731 is a prime.

It is a super-2 number, since 2×9900071803² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9900071893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4950035901 + 4950035902.

It is an arithmetic number, because the mean of its divisors is an integer number (4950035902).

Almost surely, 2^9900071803 is an apocalyptic number.

9900071803 is a deficient number, since it is larger than the sum of its proper divisors (1).

9900071803 is an equidigital number, since it uses as much as digits as its factorization.

9900071803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 9900071803 is about 99499.1045336590. The cubic root of 9900071803 is about 2147.2343601679.

The spelling of 9900071803 in words is "nine billion, nine hundred million, seventy-one thousand, eight hundred three".